Free UML Editor

Draw UML Diagrams with a free, online diagram tool

Are you Looking for a Free UML Editor?

Visual Paradigm Online is great for the drag-and-droppers out there who need a reliable UML editor. Not only can you draw UML with a full set of pre-defined notations,, but you can even insert your own text, hyperlinks and external graphics, which makes it so convenient to demonstrate some special concepts in your own UML diagrams. The Free Edition of the UML editor is free for non commercial use and support UML, ERD and Organization Chart, but you can upgrade to paid editions for more diagrams like BPMN, Flowchart, ArchiMate, and a full-fledged agile story mapping tool.

Draw class diagrams with a top-rated online design software

It's Free

UML diagram tool for all sorts of personal uses. For Free!

  • Draw as many diagrams and shapes as you like
  • Unlimited accessing period
  • No ad
  • Produce JPG, PNG and other image formats

Fast Diagramming

Create professional UML diagrams with our intuitive online UML tool. Some of the editing features:

  • Drag and drop shape creation
  • Auto adjusted connectors when moving shape
  • Click to replicate shape format
  • Reuse shapes from diagram to diagram
  • Hundreds of examples and templates


A full set of editing features are there to assist you in producing high quality result for use in your reports and presentations:

  • Alignment guide for precise positioning
  • Include images, URLs and text in diagrams
  • Formatting options for shapes and lines
  • Rotate shapes and text
  • Group, align and distribute shapes
  • Auto. create shape from text list

Key features and benefits

Key features and benefits
  • Unlimited period of access
  • Unlimited number of diagrams
  • Unlimited number of shapes
  • UML Tool, ERD editor, Org. Chart editor, Floor Plan tool, ITIL, Business Concept Diagram
  • Can be upgraded to paid editions for more diagram types and features
  • Cross-platform: Windows, Mac, Linux. Compatible with all web browsers
  • Easy to use: Create and connect shapes with drag and drop. Connectors will snap to shapes and never separate apart.
  • Apply different formatting options (shape and lines, solid and gradient paint), 40+ connector types, RTF caption, font options, shadow effect, etc
  • Draw your own diagrams with your own shapes.
  • Visio drawing and stencil import
  • Print, export and share your work in different formats (PNG, JPG, SVG, GIF, PDF)
  • Get start quickly with hundreds of diagram examples and diagram templates
  • Google Drive integration
  • Easily embed text, external images and web links to diagram

But don't take our word for it

Try it yourself. Just browse the UML Diagram examples below and click Open Diagram to open and edit. You will see for yourself that it is everything we say it is, or perhaps more.

Start Drawing Your Free Diagram Today

No limitations, no obligations, no cancellation fees.

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